Wisdom teeth that are loose and painful can be extracted, but if there is pericoronitis, the inflammation should be reduced before extraction. Wisdom teeth do not have a chewing function, so when they are removed in a timely manner, they do not have any effect on the chewing function. If they are not extracted, they may cause other discomforts, such as swollen and painful gums, inflammation and invasion of neighboring teeth, etc. The details are as follows: 1. Gum swelling and pain: mostly caused by inflammation, patients will have swollen and painful gums, difficulty in swallowing and limited mouth opening. 2. Inflammation: the crown of wisdom teeth is located in a low position, and the crown and gums are easy to form a blind pocket, food debris, bacteria hide inside, when oral hygiene is poor, the body’s resistance to decline, it will cause wisdom teeth pericoronitis. 3. Infringement of neighboring teeth: Wisdom teeth are usually grown diagonally or horizontally, thus forming a V-shaped gap with neighboring teeth, resulting in the accumulation of food debris and bacteria in this area, which will erode the neighboring teeth over time. Wisdom teeth that are loose and painful can be extracted. It is recommended to take anti-inflammatory medication to relieve the pain before extraction, and the specific treatment can be chosen by the dentist according to the condition of the affected tooth.